package servlet;

import pojo.Dept;
import service.DeptService;
import service.impl.DeptServiceImpl;

import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;
import java.util.List;


// 注解
@WebServlet(urlPatterns = "/dept")
public class DeptServlet extends HttpServlet {

    @Override
    protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
        doPost(req, resp);
    }

    @Override
    protected void doPost(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
        DeptService deptService = new DeptServiceImpl();
        req.setCharacterEncoding("UTF-8");
        String action = req.getParameter("action");
        if ("list".equals(action)) {
            List<Dept> depts = deptService.findAll();
            // 存储对象到作用域中
            req.setAttribute("depts", depts);
            // 跳转到对应的视图显示数据
            req.getRequestDispatcher("/index.jsp").forward(req, resp);
        }else if ("delete".equals(action)) {
            // 拿到网页传递过来的用户名和密码
            String sid = req.getParameter("id");
            int id = Integer.parseInt(sid);
            int result = deptService.deleteDept(id);
            // 重定向
            resp.sendRedirect("dept?action=list");

        }else if ("add".equals(action)) {
            //拿到网页传过来的用户密码
            String name = req.getParameter("name");
            int result= deptService.addDept(new Dept(name));
            if(result>0) {
                resp.sendRedirect("dept?action=list");
            }

        }else if ("update".equals(action)) {
            String sid = req.getParameter("id");
            int id = Integer.parseInt(sid);
            String name = req.getParameter("name");
            DeptService deptService1 = new DeptServiceImpl();
            int result= deptService.updateDept(new Dept(id,name));
            if(result>0) {
                resp.sendRedirect("dept?action=list");
            }

        }else if ("toupdate".equals(action)) {
            String sid = req.getParameter("id");
            int id = Integer.parseInt(sid);
            Dept dept = deptService.findDeptById(id);
            // 存储对象到作用域中
            req.setAttribute("dept", dept);
            // 跳转到对应的视图显示数据
            req.getRequestDispatcher("/update.jsp").forward(req, resp);
        }
        }
    }




